Furniture slide



Feb, 17. 1925. 1,526,509

I s, L. SNEIERSON FURNI TURE SLIDE Filed May 6, 1924 Patented Feb. 1?, 1925.

stares PATENT OFFICE.

L 'SNEIERSON, OF BOSTON, MASSACHUSETTS. ASSIGIIOB TO HENRY W. PEA- BODY & COMPANY, OF NEW YORK, N. Y., A COPARTNERSHIP COMPOSED OF FRED- ERICK W. LINCOLN, JOHN R. BRADLEE, CHARLES E. BARRY, HENRY C. PIPER,

AND BRANTZ M. BRYAN.

FURNITURE SLIDE.

Application filed May 6,

To all whom it may concern:

Be it known that-I, SAMUEL L. SNEIER- son, a citizen of the United States of America, residing at Boston, Suffolk County, State of Massachusetts, have invented certain new and useful Improvements in Furniture Slides, of which the following is a full, clear, and exact description.

This invention relates to furniture slides. More specifically it relates to slides adapted to be driven into the legs or base of an article of furniture by hammer blows without substantial deformation or rupture of the slides.

One of the principal objects of the invention is to provide a comparatively simple, inexpensive furniture slide. Other objects and advantages will appear as the invention is hereinafter disclosed.

Referring to the drawings which illustrate what I now consider a preferred form of the invention:

Fig. 1 is an elevation of one of my furniture slides attached to the leg of a chair.

Fig. 2 is an inverted plan view of the device shown in Fig. 1.

Fig. 3 is a top plan view of my furniture slide.

Fig. 4 is an enlarged sectional elevation taken on the plane of the line 44; of Fig. 3 and showing the slide attached to the leg of a chair.

The slide shown in the drawings is preferably stamped in one piece from sheet metal by means of suitable dies and consists of a downwardly convex central portion 10, a marginal portion 11 which is a zone of a hollow sphere having a radius of curvature less than that of the central portion 10, and a plurality of preferably three, peripherally spaced, pointed, attaching prongs 12 extending upwardly from the periphery of the body portion. Preferably the lateral face 13 of the marginal portion 11 is cylindrical so as to form at its intersection with the upper, inner surface of the marginal portion 11, a comparatively sharp edge 14 adapted to penetrate or be driven into the lower end of the leg 15 of a chair or other article of furniture, after the prongs 12 have penetrated the latter to a predetermined depth.

In Fig. 1 it will be noted that the radius of curvature r of the marginal portion 11 1924. Serial No. 711,331.

is less than the radius of curvature It of the central portion 10. In order clearly to illustrate this feature, I have shown a dot and dash line 16 to illustrate the position which would be occupied by the lower face of the central portion 10 if the latter had the same radius of curvature as the zone 11. I prefer that the radius r shall be less than the radius It for the following reasons. among others.

To form an effective sliding, bearing surface, it is desirable that the central portion 10 be comparatively flat or shall have a comparatively long radius of curvature. However, in order to withstand without substantial deformation or rupture the hammer blows or impacts in driving the slide into the wood or other material of which the article of furniture is constructed, the body portion of the slide must be comparatively strong. In my device, the stresses due to blows of a hammer on the substan tially fiat central portion 10, are effectively resisted by the continuous marginal portion 11 of lesser radius, and rupture and substantial deformation of the slide are pre vented. It will be appreciated of course that the difference between the radii R and 1* will depend upon the other dimensions of the slide, the thickness of the sheet metal employed in its construction, the properties of the metal, the load to be supported, etc. However, in any construction within the scope of the present invention the radius of curvature r of the continuous marginal portion 11 should be less than the radius of curvature R of the central portion 10 but greater than the radius of the cylindrical surface 13.

In order to secure one of my furniture slides to the leg 15 or base of an article of furniture it is only necessary to drive it into the latter by striking it with a hammer upon the central portion 10, in a manner similar to the driving of a nail. The prongs 12 penetrate the wood or similar material and, when they have penetrated to a certain depth, the edge 14: also penetrates the leg or base of the article of furniture as clearly shown in Fig. 4. The penetration by the edge 14 reduces the strain to which the prongs and other parts of the slide would otherwise be subjected.

It will be understood further that the surface, or at least the lower surface of the portions 10 and 11, of the slide is smooth so as to provide a proper bearing surface. Furniture equipped with mfy novel slides may be readily slid across oors, 0r rugs, or the like, without appreciable injury to the latter.

What I claim is:

1. A one-piece furniture slide comprising in combination, a body portion of sheet metal having a smooth lower surface, said body portion having a downwardly convex central portion, a marginal portion consisting of a continuous Zone of a hollow sphere having a radius of curvature less 7 than that of said central portion, and a plurality of peripherally spaced prongs 6X- tending upwardly from the periphery of said body portion and adapted to be driven into the base of an article of furniture by hammer blows upon said central portion Without substantial deformation or rupture of the body portion.

2. The article of manufacture set forth in claim 1 in which the radius of curvature of the marginal portion is greater than onehalf the greatest lateral dimension of the body portion.

3. The article of manufacture set forth in claim 1 in which the lateral face of the marginal portion is cylindrical and forms an upwardly extending sharp penetrating.

edge.

4. A one piece furniture slide comprising in combination a body portion of sheet metal having a smooth lower surface, said body portion having a comparatively flat central portion, a marginal portion consisting of a continuous zone of a hollow sphere having a radius of curvature greater than one-half the greatest lateral dimension of the body portion, and a plurality of pe riphcrally spaced prongs extending upwardly from the periphery of said body portion and adapted to be driven into the base of an article of furniture by hammer blows upon said central portion without substantial deformation or rupture of the body portion.

In testimony whereof 1 hereto affix my signature.

SAMUEL L. SNEIERSON. 

